/* =========================================================
   結木の家（ゆいきのいえ）— 工務店・注文住宅デモ
   テイスト：明朝体／濃ブラウン・墨色／オフホワイト／余白広め・静かな高級感
   ※これは制作見本（デモ）です。実在の会社ではありません。
   ========================================================= */

:root{
  --brown:#3a2a1e;       /* 濃ブラウン（主役） */
  --brown-soft:#6b5544;  /* 中間ブラウン */
  --sumi:#23201c;        /* 墨色（見出し） */
  --cream:#f7f3ec;       /* オフホワイト背景 */
  --cream-deep:#efe8dc;  /* 一段濃いクリーム */
  --line:#ddd2c2;        /* 罫線 */
  --gold:#a9884f;        /* 差し色（落ち着いた金茶） */
  --text:#41372e;        /* 本文 */
  --muted:#8a7c6d;       /* 補足 */
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Serif JP",serif;
  color:var(--text);
  background:var(--cream);
  line-height:2;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.04em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ===== デモ注意バー（全ページ上部・常時表示） ===== */
.demo-bar{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  background:var(--sumi);color:#f3ead9;
  font-family:"Noto Sans JP",sans-serif;
  font-size:12px;letter-spacing:.06em;
  text-align:center;padding:7px 14px;line-height:1.5;
}
.demo-bar strong{color:#e7c98a;font-weight:700}

/* ===== ヘッダー ===== */
header{
  position:fixed;top:33px;left:0;width:100%;z-index:900;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 7vw;
  background:rgba(247,243,236,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;flex-direction:column;line-height:1.3}
.brand-name{font-size:21px;font-weight:600;color:var(--sumi);letter-spacing:.18em}
.brand-en{font-family:"Noto Sans JP",sans-serif;font-size:10px;letter-spacing:.34em;color:var(--gold);font-weight:500}
nav{display:flex;align-items:center;gap:30px;font-family:"Noto Sans JP",sans-serif;font-size:13px;font-weight:500}
nav a{color:var(--sumi);transition:color .25s}
nav a:hover{color:var(--gold)}
.nav-cta{border:1px solid var(--brown);padding:9px 20px;letter-spacing:.1em;transition:all .25s}
.nav-cta:hover{background:var(--brown);color:var(--cream)}

/* ===== 共通レイアウト ===== */
.wrap{max-width:1040px;margin:0 auto;padding:0 7vw}
section{padding:120px 0}
.section-label{
  font-family:"Noto Sans JP",sans-serif;font-size:12px;font-weight:600;
  letter-spacing:.32em;color:var(--gold);margin-bottom:22px;
}
.section-title{font-size:33px;font-weight:600;color:var(--sumi);line-height:1.7;margin-bottom:40px;letter-spacing:.06em}
.section-lead{font-size:16px;color:var(--text);max-width:680px;margin-bottom:56px}
.alt{background:var(--cream-deep)}

.btn{
  display:inline-block;font-family:"Noto Sans JP",sans-serif;
  font-size:14px;font-weight:500;letter-spacing:.12em;
  padding:16px 38px;transition:all .3s;
}
.btn-primary{background:var(--brown);color:var(--cream)}
.btn-primary:hover{background:var(--sumi)}
.btn-outline{border:1px solid var(--brown);color:var(--brown)}
.btn-outline:hover{background:var(--brown);color:var(--cream)}

/* ===== ヒーロー ===== */
.hero{
  margin-top:0;padding:0;min-height:96vh;display:flex;align-items:flex-end;
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(35,32,28,.05) 0%,rgba(35,32,28,.55) 100%),
    linear-gradient(120deg,#5a4631 0%,#3a2a1e 45%,#241a12 100%);
}
.hero::after{ /* 木目を思わせる縦のテクスチャ */
  content:"";position:absolute;inset:0;opacity:.10;
  background-image:repeating-linear-gradient(90deg,#000 0 2px,transparent 2px 26px);
  mix-blend-mode:overlay;
}
.hero-inner{position:relative;z-index:2;padding:0 7vw 110px;max-width:1040px;margin:0 auto;width:100%}
.hero-eyebrow{font-family:"Noto Sans JP",sans-serif;font-size:13px;letter-spacing:.34em;color:#e7c98a;margin-bottom:26px}
.hero-title{font-size:clamp(34px,6vw,62px);font-weight:500;color:#fbf6ed;line-height:1.55;letter-spacing:.08em;margin-bottom:30px;text-shadow:0 2px 24px rgba(0,0,0,.3)}
.hero-sub{font-size:16px;color:#ece2d2;max-width:560px;margin-bottom:40px;line-height:2.1}
.hero-photo-note{position:absolute;right:18px;bottom:14px;z-index:3;font-family:"Noto Sans JP",sans-serif;font-size:11px;color:rgba(255,255,255,.7);letter-spacing:.08em}

/* ===== 選ばれる理由 ===== */
.reason-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-top:20px}
.reason-card{}
.reason-num{font-family:"Noto Sans JP",sans-serif;font-size:13px;letter-spacing:.2em;color:var(--gold);margin-bottom:16px}
.reason-card h3{font-size:21px;font-weight:600;color:var(--sumi);margin-bottom:16px;line-height:1.7;border-bottom:1px solid var(--line);padding-bottom:16px}
.reason-card p{font-size:15px;color:var(--text);line-height:2.05}

/* ===== 施工事例 ===== */
.works-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:36px}
.work-card{background:var(--cream);border:1px solid var(--line)}
.work-thumb{
  aspect-ratio:4/3;position:relative;display:flex;align-items:center;justify-content:center;
  color:#efe2cd;font-family:"Noto Sans JP",sans-serif;font-size:13px;letter-spacing:.1em;
}
.work-thumb.w1{background:linear-gradient(135deg,#6b5236,#3c2c1d)}
.work-thumb.w2{background:linear-gradient(135deg,#7d6a4d,#4a3a26)}
.work-thumb.w3{background:linear-gradient(135deg,#5c4a39,#312317)}
.work-thumb.w4{background:linear-gradient(135deg,#83704f,#473722)}
.sample-tag{
  position:absolute;top:12px;left:12px;background:rgba(0,0,0,.55);color:#fff;
  font-size:11px;letter-spacing:.08em;padding:4px 10px;border-radius:2px;
}
.work-body{padding:26px 28px 30px}
.work-body .cat{font-family:"Noto Sans JP",sans-serif;font-size:11px;letter-spacing:.18em;color:var(--gold);margin-bottom:10px}
.work-body h3{font-size:19px;font-weight:600;color:var(--sumi);margin-bottom:12px}
.work-body p{font-size:14px;color:var(--muted);line-height:1.95}
.work-meta{margin-top:16px;font-family:"Noto Sans JP",sans-serif;font-size:12px;color:var(--brown-soft);letter-spacing:.06em}

/* ===== 費用の目安 ===== */
.price-table{width:100%;border-collapse:collapse;margin-top:10px;background:var(--cream)}
.price-table th,.price-table td{border:1px solid var(--line);padding:20px 22px;text-align:left;font-size:15px}
.price-table th{background:var(--brown);color:var(--cream);font-weight:500;font-family:"Noto Sans JP",sans-serif;letter-spacing:.08em;width:40%}
.price-table .price{font-family:"Noto Sans JP",sans-serif;font-weight:600;color:var(--brown);font-size:17px}
.price-note{margin-top:22px;font-size:13px;color:var(--muted);font-family:"Noto Sans JP",sans-serif;line-height:1.9}

/* ===== 流れ ===== */
.flow{counter-reset:step;max-width:760px;margin:0 auto}
.flow-item{display:flex;gap:30px;padding:30px 0;border-bottom:1px solid var(--line)}
.flow-item:last-child{border-bottom:none}
.flow-no{counter-increment:step;flex:0 0 auto;width:54px;height:54px;border:1px solid var(--brown);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:"Noto Sans JP",sans-serif;color:var(--brown)}
.flow-no::before{content:counter(step,decimal-leading-zero)}
.flow-text h3{font-size:19px;font-weight:600;color:var(--sumi);margin-bottom:8px}
.flow-text p{font-size:15px;color:var(--text)}

/* ===== つくり手 ===== */
.maker{display:grid;grid-template-columns:0.9fr 1.1fr;gap:50px;align-items:center}
.maker-photo{aspect-ratio:3/4;background:linear-gradient(160deg,#5a4631,#2c2015);position:relative;display:flex;align-items:flex-end;justify-content:center;color:#e7d9c2;font-family:"Noto Sans JP",sans-serif;font-size:13px;padding-bottom:18px}
.maker-text h3{font-size:24px;font-weight:600;color:var(--sumi);margin-bottom:6px}
.maker-text .role{font-family:"Noto Sans JP",sans-serif;font-size:13px;letter-spacing:.14em;color:var(--gold);margin-bottom:24px}
.maker-text p{font-size:15px;margin-bottom:18px}

/* ===== FAQ ===== */
.faq-item{border-bottom:1px solid var(--line);padding:26px 0}
.faq-q{font-size:17px;font-weight:600;color:var(--sumi);display:flex;gap:14px}
.faq-q::before{content:"問";font-family:"Noto Sans JP",sans-serif;font-size:13px;color:var(--gold);border:1px solid var(--gold);width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;border-radius:50%}
.faq-a{font-size:15px;color:var(--text);margin-top:12px;padding-left:40px}

/* ===== お問い合わせ ===== */
.contact{background:var(--brown);color:var(--cream)}
.contact .section-label{color:#e7c98a}
.contact .section-title{color:#fbf6ed}
.contact-lead{font-size:16px;color:#ece2d2;max-width:620px;margin-bottom:44px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-card{border:1px solid rgba(231,201,138,.35);padding:34px 32px}
.contact-card h3{font-family:"Noto Sans JP",sans-serif;font-size:14px;letter-spacing:.14em;color:#e7c98a;margin-bottom:16px}
.contact-card .big{font-size:27px;font-weight:600;color:#fbf6ed;font-family:"Noto Sans JP",sans-serif;letter-spacing:.04em}
.contact-card p{font-size:14px;color:#d8cab4;margin-top:10px}
.form-row{margin-bottom:20px}
.form-row label{display:block;font-family:"Noto Sans JP",sans-serif;font-size:13px;color:#e7c98a;margin-bottom:8px;letter-spacing:.06em}
.form-row input,.form-row textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(231,201,138,.3);color:#fbf6ed;padding:13px 15px;font-family:"Noto Sans JP",sans-serif;font-size:14px}
.form-row textarea{min-height:120px;resize:vertical}

/* ===== フッター ===== */
footer{background:var(--sumi);color:#cdbfa9;padding:70px 7vw 40px;font-family:"Noto Sans JP",sans-serif}
.foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;max-width:1040px;margin:0 auto;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand .brand-name{color:#f3ead9;font-family:"Noto Serif JP",serif}
.foot-brand .brand-en{color:var(--gold)}
.foot-nav{display:flex;gap:40px;font-size:13px}
.foot-nav a{color:#cdbfa9;transition:color .2s}
.foot-nav a:hover{color:#fff}
.foot-disclaimer{max-width:1040px;margin:26px auto 0;font-size:12px;line-height:1.9;color:#9a8d78}
.foot-disclaimer strong{color:#e7c98a}
.foot-copy{max-width:1040px;margin:20px auto 0;font-size:11px;color:#7d7160;letter-spacing:.08em}

/* ===== レスポンシブ ===== */
@media(max-width:860px){
  nav{gap:16px;font-size:12px}
  .nav-cta{padding:7px 13px}
  .brand-name{font-size:18px}
  section{padding:80px 0}
  .section-title{font-size:26px}
  .reason-grid{grid-template-columns:1fr;gap:34px}
  .works-grid{grid-template-columns:1fr}
  .maker{grid-template-columns:1fr;gap:30px}
  .contact-grid{grid-template-columns:1fr}
  .price-table th{width:auto}
  header{padding:14px 6vw}
}
@media(max-width:560px){
  nav .nav-link{display:none}
}